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A basic mercury thermometer is a precisely crafted piece of tube-shaped glass enveloping a mercury-filled reservoir connected to an extremely thin channel, called the capillary bore, that provides a chamber the mercury from the reservoir can expand into.
Dec 18, 2023 · In a mercury thermometer, a glass tube is filled with mercury and a standard temperature scale is marked on the tube. With changes in temperature, the mercury expands and contracts, and the temperature can be read from the scale. Mercury thermometers can be used to determine body, liquid, and vapor temperature.
The three fundamental components of a thermometer are a spirit or mercury-filled liquid that reacts to temperature changes, a glass tube to hold the liquid, and black ink to fill in the engraved scale marks with legible numbers. A sensitive thermometer is required to measure temperature.
Dec 15, 2020 · Oral temperature can be taken by either a digital or mercury thermometer. We’ll go over the benefits and drawbacks of mercury thermometers below.
Jan 11, 2023 · Once a staple in most medicine cabinets, mercury thermometers use mercury encased in glass to measure body temperature. Mercury thermometers are no longer recommended because they can break and allow mercury — which is toxic — to escape.
Oct 19, 2023 · The main reason mercury is used in thermometers is because it has a higher coefficient of expansion than water. This means that changes in its volume with temperature are more noticeable. Additionally, mercury has a boiling point of 356.7 degrees Celsius, which is much higher than alcohol’s boiling point of 78.37 degrees Celsius.
A basic mercury thermometer is a precisely crafted piece of tube-shaped glass enveloping a mercury-filled reservoir connected to an extremely thin channel, called the capillary bore, that provides a chamber the mercury from the reservoir can expand into.
